v7.6.0 — Topic Filtering & Symlink Fix

Added

• Topic filtering for forum supergroups — New SKIP_TOPIC_IDS environment variable to exclude specific topics from backup while keeping the rest of the chat. Format: chat_id:topic_id,.... Works in both scheduled backup and real-time listener flows (#117)

Fixed

• Dangling dedup symlinks no longer cause infinite redownload loops — When DEDUPLICATE_MEDIA is enabled and VERIFY_MEDIA runs, dangling symlinks (where the target was renamed by Telethon) are now detected via os.path.lexists() instead of os.path.exists(), which follows symlinks. The download return value is now captured to use the actual on-disk filename for symlink targets. Stale symlinks are removed before recreation to prevent Errno 17 (file exists) errors. Applies to both scheduled backup and real-time listener (#115)

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📋 Full changelog: docs/CHANGELOG.md